XP8 for current capabilities and for what's to come. It might be two years down the road but you'll be able to remotely access your system, use a computer as a controller, or possibly control with an iPod. Time based events, relays, and way more sensing inputs (if I could get them to work) also make it worth wild.
"Just when I thought you couldn't possibly be any dumber, you go and do something like this... and totally redeem yourself!"